42results about How to "Improve antenna radiation efficiency" patented technology

A vehicle slot antenna wherein an electro-conductive coating is applied to the surface of a glass ply. The peripheral edge of the conductive coating is spaced from the vehicle window edge and connected to a high conductive bus bar to define an annular slot antenna with low resistance loss and improved antenna efficiency. The slot antenna is fed by a thin conductive line located in the middle of the slot and parallel to the bus bar. The thin line along with the conductive coating and window frame form a coplanar waveguide (CPW). The CPW feed provides a convenient feed for the antenna at any point around the perimeter of the window slot and affords antenna tuning and impedance matching. The antenna design can use the characteristic impedance of the CPW line to match the impedance of the slot antenna to the impedance of a coaxial cable or other input impedance.

This invention provides an antenna module and an electronic device using the same. The antenna module includes a signal feeding part, a ground part, and a first asymmetric meander line. One terminal of the first asymmetric meander line is connected with the signal feeding part, the other terminal is connected with the ground part, and the first asymmetric meander line does not meander toward its inner side. A signal is fed in via the signal feeding part to allow the first asymmetric meander line to excite a first resonance frequency. An area of the antenna module in the invention is smaller than that of a conventional planar antenna, and the antenna module can generate an inductive effect to improve antenna radiation efficiency. Besides, since the area of the antenna module is small, a metal electronic component in the electronic device and the antenna module won't overlap thus to reduce interference.

A wireless communication device is provided with a multipart case, having electrical interfaces that encourage the flow of radiation frequency ground current between case sections. The multipart case has a first planar groundplane section and a second planar groundplane section. For example, the multipart case design may be a slider, double slider, multiple hinge, flip, or swivel case. The second planar groundplane is substantially coplanar with the first groundplane in a case open position, and substantially bi-planar with the first groundplane in a case closed position. The wireless device also includes an antenna located adjacent the second groundplane section first end. A first and a second interface electrically connect the first groundplane section to the second groundplane section second end (the end opposite the antenna).

There are provided a high-permittivity dielectric raw material, an antenna device using the raw material and being useful as, especially, the built-in antenna device of a portable phone; a portable phone which can be reduced in weight, thickness and size, with an antenna radiation efficiency improved, and an electromagnetic wave shielding body for effectively shielding electromagnetic wave from an electric cooker.A dielectric raw material A having carbons dispersed in a silicone rubber base material 1, wherein, in any one of dielectric raw materials A, 1) containing 150 to 300 pts.wt. of carbons per 100 pts.wt. of silicone rubber, 2) formed by crosslinking and molding a mixture of non-crosslinked silicone rubber, non-crosslinked organic polymer and carbons, and 3) formed by combining and blending at least two kinds of carbons having different shapes and selected from spherical carbon 2, flat carbon, carbon fiber with a specific aspect ratio, carbon nanotube and conductive carbon 3, carbons are unevenly distributed in a silicone rubber base material 1 or carbons are contained with at least part of them contacting each other.

An antenna system includes a first transmission line, a second transmission line, a third transmission line, a fourth transmission line, a first dipole antenna, a second dipole antenna, a third dipole antenna, a fourth dipole antenna, a fifth dipole antenna, a sixth dipole antenna, a seventh dipole antenna, and an eighth dipole antenna. Each dipole antenna is coupled through a corresponding transmission line to a feeding point. Each of the fifth dipole antenna, the sixth dipole antenna, the seventh dipole antenna, and the eighth dipole antenna is positioned between the feeding point and a corresponding one of the first dipole antenna, the second dipole antenna, the third dipole antenna, and the fourth dipole antenna. Each of the partial dipole antennas includes a positive radiation branch and a negative radiation branch. The angle between the positive radiation branch and the negative radiation branch is less than 100 degrees.

A multiband antenna with the broadband function has a radiator, a feed cable, a first extension conductor, and a second extension conductor. The radiator has a microwave substrate, a coupling conductor, a first conductor, a second conductor, a third conductor, and a connecting conductor. The coupling conductor is connected with a positive signal wire of the feed cable. The third conductor is connected with a negative signal of the feed cable for transmitting electrical signals. The radiator generates the multiband mode of the antenna. By connecting the first extension conductor and the second extension conductor with the radiator, the surface current distribution and impedance variation of the antenna can be effectively adjusted to achieve the broadband effect.

A slot antenna in a vehicle glazing established between the surface of the vehicle portal for the glazing and the peripheral edge of an IR reflective coating that has a bus bar over the coating edge. The antenna slot is fed directly by a voltage probe and / or a conductive line located in the slot and parallel to the bus bar. Multiple voltage probes and conductive lines can support respective antennas. A second conductive line is parallel and cooperates with the first conductive line to form a coupled coplanar line that links to the antenna slot. The longitudinal location of the links and the length of the coplanar lines are adjusted to excite multiple frequency modes. Multiple antennas can be used to broaden overall bandwidth or to add additional frequency modes.

A multi-frequency, noise optimized active antenna consisting of one or several actively tuned antennas optimized over incremental bandwidths and capable of tuning over a large total bandwidth. One or multiple impedance transformers are connected to the antennas at an optimal location, with the transformers acting to reduce the impedance for optimal coupling to a transceiver / receiver. Active components can be incorporated into the antenna structures to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna. The radiating elements can be co-located with a ferrite material and / or active components coupled to the element to tune across a wide frequency range.

The invention relates to electronic equipment and a control method thereof. The electronic equipment comprises a first electronic part, a second electronic part, an antenna assembly and an elastic part. The second electronic component is slidably connected to the first electronic component. The antenna assembly comprises a radio frequency module, an antenna radiator and a radio frequency line, theradio frequency module is arranged on the first electronic component, the antenna radiator is arranged on the second electronic component, and the radio frequency line is connected between the radiofrequency module and the antenna radiator. The elastic part is arranged in the first electronic part, one end of the elastic part is connected to the first electronic part, the other end of the elastic part is connected to the radio frequency line, and when the second electronic part slides in the direction close to the first electronic part, the elastic part provides acting force away from the second electronic part to the radio frequency line. According to the electronic equipment and the control method thereof, the antenna radiator is arranged on the second electronic component, the position of the second electronic component is adjusted according to the performance index of the antenna radiator, and the antenna radiation efficiency of the electronic equipment can be improved.

This invention provides an antenna module and an electronic device using the same. The antenna module includes a signal feeding part, a ground part, and a first asymmetric meander line. One terminal of the first asymmetric meander line is connected with the signal feeding part, the other terminal is connected with the ground part, and the first asymmetric meander line does not meander toward its inner side. A signal is fed in via the signal feeding part to allow the first asymmetric meander line to excite a first resonance frequency. An area of the antenna module in the invention is smaller than that of a conventional planar antenna, and the antenna module can generate an inductive effect to improve antenna radiation efficiency. Besides, since the area of the antenna module is small, a metal electronic component in the electronic device and the antenna module won't overlap thus to reduce interference.

An enhanced printed circuit board monopole antenna includes a baseplate, a signal feed-in unit, a first-radiation unit, a second-radiation unit and an auxiliary ground unit. The first-radiation unit and the second-radiation unit are arranged on a front side and an edge side of the baseplate. The auxiliary ground unit is arranged on the edge side and electrically connected to a first ground unit and a second ground unit on the baseplate. Adjusting the first-radiation unit controls 88 MHZ-60 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. According to the frequency wave length (1λ, ½λ, ¼λ or ⅛λ) formed by the first-radiation unit and the second-radiation unit cooperating with each other, controlling 88 MHZ-60 GHZ frequency range achieves the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna radiation efficiency can be increased effectively.

The present invention relates to an antenna apparatus and an electronic device comprising the same. The antenna apparatus according to one embodiment of the present invention comprises an array antenna formed on a metal case of an electronic device, wherein the array antenna comprises at least two antenna elements, the at least two antenna elements may operate in the same frequency band. According to one embodiment of the present invention, it is possible to provide an antenna apparatus capable of reducing heat generation and increasing the radiation efficiency of an antenna.

The invention belongs to the technical field of antennas, and provides an external power supply device applied to wearable devices, including a casing, a battery disposed in the casing, and a charging and discharging interface electrically connected to the battery. The external power supply The device also includes an antenna branch provided on the housing for coupling with the local antenna of the wearable device, and an antenna interface coupled with the antenna branch and used for communication with the wearable device . When the wearable device is docked and charged with an external power supply device, it can provide an external antenna branch coupled with the local antenna for the wearable device. The antenna branch can increase the height of the local antenna to the ground, which is a good improvement Antenna radiation efficiency of wearable devices.

The invention belongs to the technical field of antennas and provides an external power supply device applied to wearable equipment. The external power supply device comprises a shell, a battery arranged in the shell and a charging and discharging interface electrically connected with the battery; the external power supply device further comprises an antenna branch which is arranged on the shell and is used for being coupled with a local antenna of the wearable equipment, and an antenna interface which is coupled with the antenna branch and is used for being communicated with the wearable equipment. When the wearable equipment is in butt joint with the external power supply device so as to be charged, the external antenna branch coupled with the local antenna can be provided for the wearable equipment, the height to ground of the local antenna can be increased through the antenna branch, and the antenna radiation efficiency of the wearable equipment is well improved.

A cellular phone includes upper casing 2 having a front surface with LCD panel 21 disposed thereon, lower casing 3 having a front surface with key pad 22 disposed thereon, and an antenna, upper and lower casings 2, 3 being openably and closably coupled to each other. First control plate 10 for reflecting electromagnetic waves is disposed in upper casing 2, and second control panel 11 for reflecting electromagnetic waves is disposed in lower casing 3. First control plate 10 and second control plate 11 comprise separate members which are independent of each other. When the cellular phone is in an unfolded state in which the angle formed between the front surface of upper casing 2 and the front surface of the lower casing 3 is maximum, first control plate 10 and second control plate 11 have a maximum projected area on the surfaces of upper and lower casings 2, 3.

The invention relates to electronic equipment and a control method thereof. The electronic equipment comprises a first electronic component, a second electronic component, an antenna assembly and a pushing piece. The second electronic component is slidably connected to the first electronic component. The antenna assembly comprises a radio frequency module, an antenna radiator and a radio frequencyline. The radio frequency module is arranged on the first electronic component; the antenna radiator is arranged on the second electronic component, the radio frequency line is connected between theradio frequency module and the antenna radiator, the pushing piece is connected to the second electronic component and extends into the first electronic component, the two ends of the radio frequencyline are located on the two opposite sides of the pushing piece respectively, and the pushing piece is provided with a pushing end facing the radio frequency line. According to the electronic equipment and the control method thereof, the antenna radiator is arranged on the second electronic component, and the position of the second electronic component is adjusted according to the performance index of the antenna radiator, so that a relatively large antenna clearance area can be kept around the antenna radiator, and the antenna radiation efficiency of the electronic equipment can be improved.

The present application relates to an electronic device and a control method thereof. The electronic device includes a first electronic component, a second electronic component, an antenna assembly, a position sensor and a guiding mechanism. The second electronic component is slidably connected to the first electronic component, the antenna assembly includes a radio frequency module, an antenna radiator and a radio frequency line, the radio frequency module is arranged on the first electronic component, the antenna radiator is arranged on the second electronic component, and the radio frequency line is connected to the Between the radiator of the radio frequency module and the antenna. The position sensor is used to detect the position state of the second electronic component. The guiding mechanism is adjacent to the radio frequency line, and when the position sensor detects that the position state changes, the guiding mechanism drives the radio frequency line to move. In the above-mentioned electronic device and its control method, the antenna radiator is arranged on the second electronic component, and the position of the second electronic component is adjusted according to the performance index of the antenna radiator, so that a relatively large antenna clearance area can be maintained around the antenna radiator, To improve the antenna radiation efficiency of electronic equipment.